System of distribution.



H. L. VAN VALKENBURG. SYSTEM OF DISTRIBUTION. I APPLICATION FILED JUNE 23,1905.

In In 3 @m 4 W 50 alcdwow. v. 3. m y 3 H L. VAN 'VALKENBURG; SYSTEM OF DISTRIBUTION.

APPLIdA T ION. FILED JUNE 22, 1905. v I r Patented Sept. 7, 1909. I

'2 SHEETS-SHEET 2.

To'al l whom it may concern:

' UNITED STATES HERMO'N L.

arnum OFFICE. p

' v TRIO MANUFACTURING COMPANY, A CQBPORATION OF OHIO.

- SYSTEM 01? DISTRIBUTION. I

, Be .it known that I, HERMoN L. VAN VALKENBURG, a citizen of the United States, residing at Norwood, in the county of Hamilton and State of Ohio, have invented'certain new and useful Improvements in Systenisof- Distribution, of which the following is a ,full, clear, and exact specification. I

;'My invention relatesto systems of electrical distribution and particularly .to the eontrolling mechanism for. such systems.

In systems of distribution ,for' current at high. potential as at' -present "constructed andarranged, it 1s. c'ustomaryto employa' -p 1u-,

rality of sets of distributing mains or dupli-v cate sets of'bus bars on the switch-boards of generating or sub-stations. In case one set of distributing mains or one'set of bus bars becomes injured, or {or any other reason-it is .found desirable: to cut'sam'e out ofse'rvice, the dynamo-electric machine, or other elec tri'cal-apparatus normally connected to' said set of mains, orbus bars, may readilybe.

transferred to the other set of mains or bus bars without-materially interfering with the continuous operation ofthe system. This is accomplished b means of transfer switches which are usua ly of light and relatively inexpensive construction and are g not adapted to be employed for opening and closing the circuit of high potential mains while current is flowing in t e circuit. For the purpose of controlling the supply of current -in the circuit a specially constructed switch, such as an oilswitch, is employed. As it would be extremely dan 'erous under ordinary con-.

.ditions to open t e circuit by means of the transfer-switch whenthe oil-switch is closed, that is,-while a heavy current at high voltage is flowing through the circuit, it is the 4 r ob e'ct of my invention to prevent positively the o eration of such transfer-switch unless the ell-switch is in its open position, and

comprises the combination of duplicate sets' thereby permit the employment of a very simple and inexpensive 'form of transferswitch with perfect safety,

- The invention therefore. consists of an oilswitch and transfer-switch such as employed in a high potential system of distribution, in, 1 combination with an interlock between said switches.

More specifically considered, the invention of high potential mains, an electric trans lating device, such as .a dynamo-electric ma- 7 4 Specification of Letters Patent. 7 Patnted Sept. 1909. Application filed June 22, 4

1905. Serial mi. 266,520.

VAN VALKENBUBG, 0F NORwoon, OHIO, AssIGNon' TO THE BULLOGKELEG- i chine, transformer, or the like, ,a transfer-' switch-for connecting said translating device to one or'the 'other'of'saidysets of mainsfan oil-switch in the circuit. between the translating device and the transfer-switch, electromagnetic operatingv means for said switches, and an electrical interlock between I I the o crating electro-magnets so that the trans er-switch can not be operated unless] the oil-switch is in its open position. In, the accompanying drawings, illustrate the preferred embodiments of'my as which.

invention, .Figurel is a diagrammatic rep- 1 resentation of an oil-switch and transferswitch with a mechanical interlock between them; Fig. 2 is a detail of the interlocking mechanism; Fig. 3 is an elevation of part of the front of switch-board panel shown in Fig. 1 and Fig. 4is a diagrammatic representation of a system of distribution provided with electrically operated transfer-' v switch and oil switch with an-electrical interlock between them.

Referrin first to the modification illustrated in l igs. 1,2, and 3, the high potential mains or bus bars of a three-phase sys tem of distribution are shown in-duplicate sets, a, 12,-0, and a, b,*and 0.' One or the other of said sets of mains or bus. bars is adapted'to be connected to the mains d, c, and fby means ofthetransfer switch 5. Lo-

cated in the circuit of said mains d, e and f, between said transfer-switch and the trans lating. devicefi is the specially constructed circult-breaking switch 7, here illustrated as an oil-switch. The oil-switch comprises the relatively fixed contacts-8 and 9, which are bridged by the bridging member 10 carried by the reciprocating 12. Said lever 12 1s connected with the operatin handlev 13 by means of the togge 14: an link 15. The oil-switch is shown'in rod 11 attached to lever its closed p sition; The transfer-switch 5 to. itsoperating handle '16 through the connectin -rod 17, the bell crank lever18, and the to 19, the latter being connected to thearm 20 mounted upon the shaft 21, which extends completely through they switch-board panel 22 and carriessa d handle 16 .To forman interlock between the transfer-switch and the oil-switch so as .to prevent said transfer-switch frombeing is connecte operated unless the oil-switch is in its-open position,.I mount the slotted plate 23 upon -the shaft 21, and provide the handle 13 withthe projecting blade 24- which co-acts with the slots 25, 26, and 27 insaid plate 23. The slots 25 and 27 correspond to the.

operative positions of the transfer-switch 5 and the slot 26 corresponds to its oif or mid position. With the switches as shown in Fig. 1, the transfer switch 5 is connected to the mains a, b, 0, and the oil-switch is closed. The projecting blade 24 has therefore beenmoved into the slot 27 on plate 23 (as shown in Figs. 1 and 2) and theswitch 5 and handle .16 are-locked against movement, thereby bein prevented from being opened until the switch 7 is opened and the projecting blade 24 is moved out of en-v ga ement with slot 27.

11 Fig. 4 I have illustrated diagrammatically the duplicate sets of' singleiphasg apte .mains' or bus bars 9, h, and g h, a

to be connected to the translating device 6.

through the connecting mains in, p by means of the transfer-switch 5 and the oilswitch .17; The transfer-switch in this modification; 1s provided with the operating electro-mag-.-

nets 25 and 26, adapted'to be operated by current from'the auxiliary sourceof current supply 21'. from a distant point by the master controlling switches 28 and 29 respectively. The

Said magnets are controlled toggle 14 ofzthe' oil-switch 7} is. connected with the rod'15 forming the core of the operating electro-magnet 30. This rod 15 1s also provided with an auxiliary switch31 which'is connected in circuit with the operating electro-magnets 25 and 26 to form. an electric interlock which prevents the operation of' transfer-switch'5 unless the oilswitch is in its open position. The electromagnet 30 is operated by current from the auxillary source of current supply 27 and is controlled by the master controlling switch J 32.v Also connected in circuit with said electro-magnet 30 are the auxiliar switches tion as shown, and the auxiliary switch 31 33 and 34 carried by the trans er-switch.

These switches 33and 34 prevent the oilswitch from being operated unless the transfer-switch is in on e or the other of its operative positions. In the operation of this modified form of my invention illustrated in Fig. 4, with the oil-switch in its open posiclosed, it is ossible to throw the transferswitch into either of its operative positions By. closingthe master. switch-'28, a circuit is completed from the source of supply 27,

through switch 28, operating magnet 25, conductor 35, auxiliary switch :31, iconductors 36 and 38 to 27 Thecompletion of this oil cult energizes the magnet 25' and the transfer-switch isthrown so as' to connect theinains g, h to the connetionmains 7c and 19. To connect the mains g', h'with connection mains in and p, the magnet 26 isenergized by closing the master switch 29 and completing a circuit from the source of current supply 27 auxiliary switch 31, conductors 36and 38 to 'source'27'. -With the transfer-swltcli 5f in either of its operative positions so as to. 3

have .one' -or the other of the interlock switches 33 and 34 closed, the oil-switch 7. may be closed by energizing the magnet 30. This is accomplished by'closing the masfrom the source of supply 27 through through switch 29, magnet 26, conductor 35,

'ter switch 32 so as tocomplete a circuit switch 32, magnet 30, conductor'39, either of.

switches 33 01' 34, conductors lp and 38 to source 27. As the oil-switch is closed the auxiliary interlock switch 31 is opened and the transfer-switch is prevented from operating so long as said oil-switch remains 31 closes and the oilswitch -7i opens-auto- 'matical-ly when the magnet 30 d'energized. ;'It will thus be seen that wlth the ar-- rangeinent just described a-simple system of remote control for. the oil-switch and transin its closed position. i The auxiliary switchfer-switch is provided and neither. of said switches can be operated unless the other is,

vention;

Havingthus described my invention, what ters Patent is- 1. Ina high potential system of distribu I claim asnew and desire to secure by Lettion, an oil-switch, two conductors, a trans:

fer-switch for connecting said-oil-switch-to either of said conductors, electro magnetic means for operating each of said switches,

and an interlock between said switches.

2. In a high potential system of distribution, an oil-switch, two conductors, av trans-j fersswitch forconnectingieither of said conductors to said oil-switch, separate operating means for eachof jsaid switches, and means for preventing any operation of the transferswitch Iunless the oil-switch in open position. 1 3. In a tion, anoil-switch, two conductors, a transfereswitchfor connecting said oil switch to either of said conductors, separate'operating means for each of said switches, and means for preventingany operation of'either ofsaid switches unless the other switch is in a predetermined positiom ."4.- In a high potenti 1 system of distribution, an oil-switch, two conductors, a trans- I fer switch for connecting said oil-switch to either of sa d conductors,remote control mechanlsm for said switches, and means for determined position. 1

5-. In a high potential system of distribuhigh potential system of 'distribupreventing any operation of either of said. switches unless the other switch is in a p'rel aiiiaain tion, an oil-switch, two conductors, a trans fer-switch for connecting either of said conductors to said oil-switch, means for operating said switches, meanssfor controlling said 5 operating means, 7 and an interlock which prevents any operation, of said transfera switch unless the-oil-switchis, in its open position. I I 6. In a high potential system of distribul0 ductors to said oil-switch,electro-magnets-for operating saidswitches, master controlling switches for said elfectro rnagnets, and auxiliary switches. inycirenit with said electromagnets and controlled by said oil-switch and transfer-switch to. form an electrical interlock betweensaid operating electro-magnets;

7. Inahigh'potential system of distribuswit'ch, two conductors, an ele'ctro-magnetic- I ally operated transfer-switch for connecting either of said conductors-to said oil-switch, and an electrical ,interlock between said transfer-switch when theroil-switch is in its closed position.

8. In a high'potenti-a'l; system of distribution, an oil-switch, two conductors, a transfer-switch for connect-ing'said oil-switch to either of'said conductors, electro-magnets for operating said switches, master controlling switches for said electro-magnets, and con-- nections whereby the oil-switch and the 3 transfer-switch each control the circuit 01 1 the operating magnet 01' magnets of the other switch.

9. rIn combination, duplicate sets of high potential mains, an electrical translating de- 40 vice, a transfer-switch forv connecting said translating device to one or theother of said and an electrical interlock between. said v switches to prevent the'opening of the circuit by means .of the transfer-switch.

'11. In combination, duplicate sets of high potential mains, an electrical translating device, a transfer-switch for connecting said translating device'to one orthe other of said sets of 1na1ns,an oil-switch in t-hetcircuit between the translating device and said transfer-switch, electro-magnetic operating means unless the oil-switch isin its open 12; In-combination, aplurality of. sets of tion, anoil-s'witch, two-conductors, a transfer-switchfor connecting either of said eon-- tion, an electro-magnetically operatedfoil switches so as to prevent the operation of the i said translating device,

- said translatin device,

'ing device, and an interlock lfor saidswitches, and an electrical interlock.

between said operating electro-magnets so that 'the transfer-switch can not be operated position;

bus-bars, a dynamo-electric mach ne, a transfer-switch for connecting said machine to either set of bus bars, an oil-switch in circuit with said machine, separate operating means for said two switches, and means for pres venting any operation of the transfer-switch unless the oil-switch is in its open position.

4 '13. In a system of distribution, a plurala translating-device, leads for ity of-mains, said translating device, a switch in said leads,',a transfer switch for connecting said leads to difierent setsof said mains, and an electrical interlock between said switches.

' 214. In a system of distribution, a plurality of 1nains,'a translating device,ileads for, saidtranslating device, connecting said leads to any set'of the mains,

a transfer switch for' a switch for completing the circuit of said translating device, and an electrical interlock between said switches. 15. In a system of distribution,

a plurali-tyof mains, a'translating device, leadsfor said translating device, a switch in said leads, a transfer switch for 'connectingsaidleads to different sets of said mains, separate means for said two switches, and

operatin an inter ock between sald switches to provent any operation of the transfer switch when the other switch is closed.

16. In a systemof distribution, a phLrality of mains, a translating device, leads for ally operated transfer switch for connecting ieo an electromagneticsaid leads to any set of the mains, a switch for completing the circuit of said translating, device, and means forpreventingthei opening of the trzinsfer switch'when the cireuit-completingswitch is closed.

17. In a system of distribution, a plural-- ity of mains, a translating device, leads for connecting said leads to any set of the mains, an eleetromagnetically operated oil switch for completing the circuit of said translatbetween said switches.

a transfer switch for- 18. In a system of distribution, a plurality of malns, a translating device, leads for said translating device, a switch in said leads, a transfer switch for connecting said leads to different sets of said mains, separate operating means for reventing any operationiof either of said switches whenthe other switch is ina predetermined position.

19.- In a system of distribution, a plurality means for said two switches, and

of mains, a translating device, leads for said translating device, an electromagnetically connecting operated transfer switch for said leads to any set Jof the mains, an electromagnetically operated switch for completing the circuit of said translating device, and remote control mechanism for said switches.

20.- In.a system of distribution, a plurality of mains, atranslating device, leads for said translating device, a transfer switch-for connecting said leads to any set of the mains, a switchffor completing the circuit of said translating device, remote control mechanism for said switches, and means for preventing any operation of either of said switches unless the other switch is in a predetermined position.

u 21. In a system of distribution, a pluralty of mains, a translating device, leads for [said translating device, an electromagnetically operatedswitch in said leads, an electromagnetically operated transfer switch for connecting: said leads to different sets of said mains, and connections between the switches" so as to. prevent the operation of the transfer switch when the other switch is closed.

22. In a high potential system of-distribut1on, an o1l-sw1tch, two conductors, a trans:

fer-switch for connectingsaid oil-switch to' either of said conductors, means for operat:

ing .each of said switches, and an electrical interlock between said, switches.

23.- Ina system of distribution, a. plurality of mains, a translating device, leads for said translating device, a transfer switch for connecting said leads'to any set of the mains, a switch for completing the circuit of said translating device, and means for preventing for actuating each 0 vmeans for preventing'any'operation of elther predetermined position. v In testimony whereof afiix mysignature,

unless the transfer switch is closed.

' 24:. In a system of distribution, a pluralityofmains, a translating device, leads for said translating device, a transfer switch forconnecting said leads to any set of the.

mains, a switch for completing the circuit of said translating'device, and means for preventing the operation of the circuit-comthe closing of the circuit-completing switch [a pleting -switch when the transfer switch is openis 25.. In a system of distribution, a" translating device, a switch for. making and.

breaking the circuit of said device, two sets of conductors, a transfer switch for con-.

necting said first mentioned switch to either set of said conductors, owrsope'rated means said switches, and

of said switches unless the other switch" is in'a predetermined position.

26.. In a bi 'h potential system of distribution, an 0 switch, tw,'o conductors, a transfer switch for connecting "either of said conductors to said oilswitch, ower-operated actuating means for each 0 said switches, and means for preventing'the application of powerto the actuating means of either of said switches unless the other switch is ina 

